Abstract: The aim of any engineering design is to minimize the total cost of the structure without compromising the functional requirements while maximizing the utility of the structure to the users in particular and to the society in general.

• 摘要：所有工程设计的目的都是为了在不降低功能要求的同时，以最小的结构总成本最大限度地实现用户对结构利用的特殊要求及社会对结构使用的总要求。